"Heavy Singijeon were a later, more advanced version of the shoulder-fired Singijeon rocket. As such, range was better and they packed a bigger punch, but accuracy was not much improved, and like all such weapons, the Heavy Singijeon periodically exploded spectacularly on launch with predictable results to the firer and his friends. These were as much psychological warfare weapons as anything else - seeing a volley of missiles streaking towards you tested the mettle of any medieval soldiers."

Heavy Singijeon can be used as good Alliance Troops. One example is that they can shoot over walls to attack troops of the attackers forcing the troops to destroy the wall to kill them. Another thing is that they're good against other heavy infantry.